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X No. 752,253. I PATENTEDFEB. 16, 1904.

'- I P. 11. PAGE;

WINDOW SASH PASTENER.

APPLIGAMW TILED Nov. 23. 1903; :10 MODEL.

' IIVYVENTOR Piliilp' iipayr. j

Patented February, 16,1904 3 PHILLIP n. PAGE, or SURREY churns; entrant.

WiNDOW-SASH FASTENER- SPECIFICATION forming part of Letters Patent No. 752,253, dated February 16, 1904.

Application filed November 23 1903. Serial No. 182,293. (No model.)

To ti-Z whon t it may concern: j

*Be itknownthat I, PHILLIP .H. PAGE, a citizen of the Dominion of Canada, residing at Surrey Centre, in the Province of British Columbia, Canada, have invented a new and useful Improvement in VVindow-Sash Fasteners, of which the following is a specitication.

The object of this invention is to provide a device that will automatically sustain the weight of a window-sash in any desired position without the use of balanceweights and that can readily be released to effect the closing of the window.

It consists of a simple adaptation of a selftightening wedge and differs from other devices of a similar character in the reduced simplicity of its parts and their operation and in the facility with which it may be at- Fig. 2 is a front elevation of the device when not sustaining the windowsash; Fig. 3, a back view of the device, showing the spring and its recess; Fig. 4, a cross-section on the line a a in Figs. 2 and 3, and Fig. 5 is a similar view of modified construction.

The device consists, essentially, of three parts-a fixed wedge portion 2, attached to the stile s of the sash, a loose wedge portion 3,

- slidable endwise between the wedge-face of 2 portion 2 is secured to the stile of the sash by screws, as shown, and may further be provided with a biting edge, as shown in Fig. 5, or a other secured to the loose wedge portion 3 by ahook end 8 on a pin or similar engagement,

and a pin 9 in the wedge-face of ienters a groove 10 in the corresponding face of 3 andv prevents 3 from becoming laterally displaced.

This groove may be carried down below the opening to the spring-recess, and a pin 11 across the groove forms the engagement of the hook end 8 of the spring. Toward the lower part of 2 and adjacent to it on 3 are verticallyopposing finger and thumb engagements 12 and 13. The contact of these seryes to check the downward movement of the loose wedge 3 and affords a means for the release of the wedge member 3 from sustaining contact with the window-frame when it is desired to close the,

window. The thumb-piece 12 also serves to' retain 3 against lateral displacement at the lower end. 5

It is obvious that the Wedge-faces of 2 and 3 may be tongue and groove or that the. edge of 2 may have a projecting lip (see Fig. 5) to retain the loose wedge laterally without departing from the spirit of my construction.

The application and action of the device is as simple as its parts, the sash 8. being pressed over laterally well against the opposite side of the window-frame to that wheron the device is to bear. The part 2 is screwed on so that tlie face of -the loose wedge 3 when at its lowest position is just clear of the windowframe facing f. The spring 4 will keep '3 in frictional contact with f; but in lifting the sash this friction will tend to free the wedge 3 from gripping; but as soon as the sash is released from the lifting eifort and begins to move down the friction between 3 and f will force the wedge 3 up the taper of 2 and the tighter it is pulled down the tighter it will grip, the angle of the taper being such as to resist sliding between 3 and f. When it is desired to lower the sash, the loose Wedge is ICC to be protected in by Letters Patent, is-

, ered.

I vWood or metal IQ "his! features,-

secured to the sash with its tapering or Wedge edge facing the casing,-

said fixedly-held wedge-face having a socket that opens at one side into the groove in the opposing wedge member, and a coiled spring mounted in the said socket having one end secured to thefixed wedge-piece and its=other end projected into the groove of the opposing wedge-piece and secured thereto substantially as shown and described.

2. As a window sash fastener; the fixed wedge portion 2 Window and provided with the spring 4 in the recess 5, the loose wedge 3 endwise slidable against the wedge-face of 2 and prevented from lateral displacement by the pin 9 in the released from its hold by taking the engagements 12 and 131; between the thumb and finger and grippingthem-together; The wedge 3 isthus (llttWlldOWfl-Mld out of frictional con tact with f and the'sash maybe freely 1ow- "A further advantage of the design is that it lends itselffto simple construction is. either and may with slight modification, but'with'ou t departing from the essenbe. manufactured from stamped sheet metal.

Having-now particularly described my invention and the manner of its operation, I

declare that what I claim as new, and desire of the spring, and the op osing finger and thumb engagements 12 and 13 on 2 and 3 respectively.

. In testimony WhereofI have signed my name to this specification in the presence of two subscribing witnesses.

PHILLIP H. PAGE.

'1 In a window-sash fastener of the character described; the combination with the sash-casing, and the sash; of a Wedge-piece fixedly and a second wedgepiece having its tapering or wedge face opposing the tapering or wedge face of the In presence of fixedly-held wedge-piece, and provided witfi" ROWLAND BRITTAIN, a longitudinal groove in its wedge-face, the ELLICE WEBBER.

secured to the stile of the groove 10, the pin 8 to receive the hook 11 

